Integrating Whatsapp into a CMS Button


I’m building a real estate marketplace using Webflow collections. I want to be able to embed a WhatsApp button that automatically starts a WhatsApp conversation using the phone number inserted in the CMS. This is because different realtors have different WhatsApp buttons.

Here is a reference of what we want to build:

I’d check and Elfsight as two to explore first.
You can also just use

Here are some demos I’ve played with.